Automatic fan for cars



(No Model.)

J. SANDS?.

AUTOMATIC EAN POR CARS.

Patented Dec. 11, 1888..

IINITED STATES PATENT OEEicE.

JESSE SANDS, OF BRIDGEPORT, (ONNF.CTICUT.

AUTOMATIC FAN FOR CARS.

SPECIFICATION forming part of Letters Patent No. 394,402, dated December 11, 1888.

Application filed May 17, 1888. Serial No,274,l52. (No model.) 4

To a/ZZ 1072/071@ it may concern:

Be it known that I, J ESSE SANDS, a citizen of the United States, residing at Bridgeport,

in the county of Fairfield and State of Oonnecticut, have invented certain new and useful Improvements in Automaticl Fans for Cars; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object to produce a system of automatic fans for railway-cars, the principle of operation being that the motion of the car itself shall be utilized to actuate the fans.

IVith this end in view I have devised the novel system of which the following description, in connection wit-h the accompanying drawings, is a specification, numbers being used to denote the several parts.

Figure l is a partial side elevation of a railway-car, a portion of the side being broken away, so as to show the operative parts on both the interior and exterior of the car, t-he style of fans being rotary; Fig. 9, a cross-section of a car illustrating my invention as applied in connection with a system of rotary fans; Fig. 3, a longitudinal sectional view illustrating my invention as applied in connection with a system of swinging fans; Fig. 4, a cross-section of a car illustrating more fully the operation of a system of swinging fans; Fig. 5, an enlarged detail view illustrating the intermediate mechanism in the forms shown in Figs. l and 2; and Fig. 6, an enlarged detail View illustrating the intermediate mechanism in the forms shown in Figs. 3 and i.

l denotes the body of a ear, which is made highest in the center in the usual manner; 2, fans suspended in the upper portion of the car out of reach, and 3 wind-wheels of any ordinary or preferred construction, which are journaled in suitable brackets, l, upon the top of the car.

5 denotes the shafts of the wind-wheels, which are provided with worms 6, and 7 denotes gears on shafts S, which receive motion from the worms. The outer ends of these shafts are j ournaled in the brackets, and the inner ends pass through the side of the central upper portion of the car and are provided within the car with disks 9, from which motion is communicated to the fans.

In the form illustrated in Figs. l, 2, and 5 rotary fans are used, the shafts l() of said fans beingjournaled in the sides of the top portion ot' the car and in a central bracket, ll. Each fan-shaft is provided with a disk, l2, and receives lnotion by means of a belt, lil, which runs from said disk over disk J 011 shaft S. ll is a loose pulley on shaft 8, upon which the belt is thrown when it is not desired to use the fans. In this form any number of fans may be used, a separate windwheel being' preferably used for each fan. If preferred, however, a single shaft, 5, may be extended longitudinally of the car and a number of wind-wheels placed upon this shaft. In use, the moment the car begins to move its passage through the air will cause the windwheels to rotate, and these in turn, through the connections described or equivalent connections, will cause the fans within the car to rotate also.

In the forln shown in Figs. 3,4, and b' swinging fans are used, which are suspended in any suitable manner from the roof of the car. In this form an intermediate gear,l5,is preferably used between the worms and gears 7, in order to reduce the speed of shafts 8. All of the fans in the series on each side of the oar are connected by a cord or wire, 16, which also extends to disk t), a suitable connection being made between the cord or wire and the disk, which will prevent the cord or wire from twisting as the disk rotates. A single wind-wheel upon the exterior of the car maybe used to actuate each series of fans; or, if preferred, the windwheel shaft may be extended along the side of the car and a number of wind-wheels placed thereon. It will be seen that in this form the rotation of disks 9 by means of the wind-wheels will oscillate the fans in substantially the same manner as in my former patent, No. 372,174, dated October 25, 1887. In the present form, however, no pendulum and rod are required. In use, just as soon as the car begins to move the fans are operated thereby and add greatly to the comfort of the passengers in warm weather by producing cur- IOO rents of air in the cars, the same results being accomplished in railway-cars provided with my novel system of fans through the motion of the cars themselves as are produced in restaurants, dwellings, &c., through the operation of the fans by a motor, as set forth in my said former patent.

It will of course be understood that the special details of the connecting mechanism between the wind-wheels and the fans are not of the essence of my invention and may be varied greatly without departing from the principle thereof.

As a car-ventilator, the combination, with a railway passenger-car having the raised cen- 

